刚写了一个spring-bootMVC 的dome, web.xml的配置写的是注解,书上说 只要继承了 WebApplicationInitializer 接口,启动是就会被自动获取到
web.xml ==>WebInitializer.java
package com.sesame.config.web;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration.Dynamic;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;
import com.sesame.config.Config;
public class WebInitializer implements WebApplicationInitializer {
/**
* 启动容器
*/
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
System.out.println("启动容器啦");
AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
ctx.register(Config.class);
ctx.setServletContext(servletContext);//将注册配置类和当前servletContext关联
// 注册springMVC的DispatcherServlet
Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(ctx));
servlet.addMapping("/");
servlet.setLoadOnStartup(1);
}
}
config.java
package com.sesame.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
@Configuration
@EnableWebMvc
@ComponentScan("com.sesame")
public class Config {
@Bean
public InternalResourceViewResolver viewResolver(){
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/classes/views/");
viewResolver.setSuffix(".jsp");
viewResolver.setViewClass(JstlView.class);
return viewResolver;
}
}
但是我在启动后
System.out.println("启动容器啦");
这行代码没有被执行,也就是说 WebInitializer.java 没有被容器识别到,
谁知道这个问题呀?求帮助
